Scientific study of date and site determinations on Japanese and Chinese ancient metal relics

(1) 1995年至1997年进行了中日古代金属文物的科学联合研究。研究了其来源和年代测定方法。采用燃烧后质谱联用铅同位素法进行物源分析。选用串联加速器质谱仪放射性碳定年法和热释光法进行定年分析。用上述方法对两国古代金属器物进行了分析。(2)采用铅同位素方法对湖北古青铜器（BC14C，商代）进行了物源分析。用中子活化分析和扫描电镜分析对样品进行了分析。研究结果对古代青铜器的来源分析有一定的参考价值。湖北遗址中发现的商代器物与商代器物的来源不同。(3)采用放射性碳定年法和热释光法对日本新泻县出土的铁渣和中国日市出土的铜渣进行了定年分析。铁和铜的炉渣没有年代。这些结果对古代金属制造的年代分析是有用的。(4)该研究结果于今年5月25日至27日在日本松江市举行的第四届国际金属与合金使用开端会议（BUMAVI）上发表。

(1) Scientific joint research of ancient metal relics of Japan and China, was performed from 1995 to 1997. Provenance and dating methods were studied for the research. The lead isotope method using mass-spectrometer after combustion was selected for provenance analysis. The radiocarbon dating method using tandem-accelerator mass spectrometer and the thermoluminescence method were selected for dating analysis. Ancient metal objects of the two coutries were analyzed by the above-mentioned methods.(2) The lead isotope methods was used for provenance analysis of ancient bronze objects, including the objects from Hubei remains (BC14C,Shang Dynasty period), Hubei province, China. The objects were also analyzed by neutron activation analysis and scanning electron microscope analysis. The results are useful for provenance analysis of ancient bronze objects. The provenance of the Shang Dynasty period objects from Hubei remains was found to be different from that of the objects of the latter periods.(3) The radiocarbon dating method and the thermoluminescence method were used for dating analysis of iron slags unearthed in Nigata prefecture, Japan and copper slags unearthed in Day city, China. Iron and copper slags had not dated. The results are useful for dating analysis of ancient metal making.(4) The results of this research are reported at the Fourth International Conference on the beginning of the Use of Metal and Alloys (BUMAVI) in May 25-27, this year, at Matsue City, Japan.